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fix: key issue of ReorderableRow

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This commit is contained in:
Vincent Chan 2022-09-01 11:48:01 +08:00
parent 8229371f63
commit 2bbba547ee
2 changed files with 32 additions and 17 deletions
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29
frontend/app_flowy/lib/plugins/grid/presentation/widgets/header/field_cell.dart
View File

@ -14,36 +14,32 @@ import 'field_type_extension.dart';
import 'field_cell_action_sheet.dart';
class GridFieldCell extends StatefulWidget {
class GridFieldCell extends StatelessWidget {
final GridFieldCellContext cellContext;
const GridFieldCell(this.cellContext, {Key? key}) : super(key: key);
@override
State<StatefulWidget> createState() => _GridFieldCellState();
}
class _GridFieldCellState extends State<GridFieldCell> {
final popover = PopoverController();
const GridFieldCell({
Key? key,
required this.cellContext,
}) : super(key: key);
@override
Widget build(BuildContext gridCellContext) {
return BlocProvider(
create: (context) => FieldCellBloc(cellContext: widget.cellContext)
..add(const FieldCellEvent.initial()),
create: (context) {
return FieldCellBloc(cellContext: cellContext);
},
child: BlocBuilder<FieldCellBloc, FieldCellState>(
// buildWhen: (p, c) => p.field != c.field,
builder: (context, state) {
final button = Popover(
controller: popover,
direction: PopoverDirection.bottomWithLeftAligned,
triggerActions: PopoverTriggerActionFlags.click,
child: FieldCellButton(
field: state.field,
onTap: () => popover.show(),
field: cellContext.field,
onTap: () {},
),
offset: const Offset(0, 10),
popupBuilder: (BuildContext context) {
return GridFieldCellActionSheet(
cellContext: widget.cellContext,
cellContext: cellContext,
);
},
);
@ -112,6 +108,7 @@ class _DragToExpandLine extends StatelessWidget {
child: GestureDetector(
behavior: HitTestBehavior.opaque,
onHorizontalDragUpdate: (value) {
debugPrint("update new width: ${value.delta.dx}");
context
.read<FieldCellBloc>()
.add(FieldCellEvent.startUpdateWidth(value.delta.dx));

20
frontend/app_flowy/lib/plugins/grid/presentation/widgets/header/grid_header.dart
View File

@ -75,6 +75,21 @@ class _GridHeader extends StatefulWidget {
}
class _GridHeaderState extends State<_GridHeader> {
final Map<String, ValueKey<String>> _gridMap = {};
/// This is a workaround for [ReorderableRow].
/// [ReorderableRow] warps the child's key with a [GlobalKey].
/// It will trigger the child's widget's to recreate.
/// The state will lose.
_getKeyById(String id) {
if (_gridMap.containsKey(id)) {
return _gridMap[id];
}
final newKey = ValueKey(id);
_gridMap[id] = newKey;
return newKey;
}
@override
Widget build(BuildContext context) {
final theme = context.watch<AppTheme>();
@ -85,7 +100,10 @@ class _GridHeaderState extends State<_GridHeader> {
.where((field) => field.visibility)
.map((field) =>
GridFieldCellContext(gridId: widget.gridId, field: field))
.map((ctx) => GridFieldCell(ctx, key: ValueKey(ctx.field.id)))
.map((ctx) => GridFieldCell(
key: _getKeyById(ctx.field.id),
cellContext: ctx,
))
.toList();
return Container(